CN217338314U

CN217338314U - Manual coffee grinder

Info

Publication number: CN217338314U
Application number: CN202123339663.0U
Authority: CN
Inventors: 袁世嘉; 江鸿沛; 邓文慧; 饶国燃; 李意然; 陈广龙
Original assignee: Beijing Institute of Technology Zhuhai
Current assignee: Beijing Institute of Technology Zhuhai
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-09-02
Anticipated expiration: 2031-12-27

Abstract

The utility model belongs to the technical field of coffee grinders, and discloses a manual coffee grinder, which comprises a machine body, a rotating shaft, a first grinder and a second grinder, wherein the rotating shaft, the first grinder and the second grinder are arranged in the machine body; the first grinder is fixed in the organism, the second grinder cover is established outside the pivot and is rotated with the pivot is synchronous, the second grinder is located the below of first grinder and with second grinder clearance fit, be provided with adjustment mechanism in the pivot, through the relative position of the adjustable second grinder of this adjustment mechanism and pivot in the axle center direction of pivot, thereby adjust the clearance distance of first grinder and second grinder, clearance distance between the two is the less, the ground coffee powder granule is more thin, thereby can realize adjusting the thickness degree of grinding and getting coffee powder as required. In addition, through setting up the second mill and can be in pivot axial displacement, still convenient to detach second mill washs or changes etc. and it is more convenient to use.

Description

Manual coffee grinder

Technical Field

The utility model belongs to the technical field of the coffee grinds machine, concretely relates to manual coffee grinds machine.

Background

Today, with the rapid development of science and technology, many new mechanical driving modes are successfully applied to life. Compared with the traditional hand-operated manpower driving mode, the automatic coffee machine is more time-saving and convenient, and is one of the automatic coffee machines.

However, the pure mechanical automatic operation is slightly more difficult than the manual operation in many aspects, especially on the experience item of diet which is the most sensible to people, the coffee made by the automatic coffee mechanism is difficult to give the feeling of manually grinding the coffee, and the automatic coffee machine is difficult to meet the requirements of people in special scenes such as outdoor activities due to the limitation of power supply and the like.

The use of old and outdated grinding tools to make coffee is of course an undesirable method. Against the background of such demands, a manual coffee machine which can satisfy both our demands for coffee quality and also get rid of the power supply limitation is undoubtedly welcomed by the market. The appearance of the manual coffee grinder can enable people to conveniently make coffee as far as possible on the basis of keeping the pursuit of coffee quality, and the daily requirement of people on the coffee is met.

However, the types of the hand-operated coffee machines on the market in China are very few, most of the hand-operated coffee machines belong to hand-operated coffee machines which can not control the grinding thickness of coffee beans, and the device brings great problems for customers with taste requirements on coffee.

Disclosure of Invention

An object of the utility model is to provide a manual coffee grinds machine can adjust the thickness degree of grinding the coffee powder as required.

In order to achieve the purpose, the utility model provides a manual coffee grinder, which comprises a machine body, a rotating shaft, a first grinder and a second grinder, wherein the rotating shaft, the first grinder and the second grinder are arranged in the machine body; the first grinder is fixed in the machine body, the second grinder is sleeved outside the rotating shaft and synchronously rotates with the rotating shaft, the second grinder is positioned below the first grinder and in clearance fit with the second grinder, the rotating shaft is provided with an adjusting mechanism, and the second grinder can be adjusted by the adjusting mechanism in the axial direction of the rotating shaft and at the relative position of the rotating shaft.

In some embodiments, the first grinder is hollow, and the inner wall of the first grinder is provided with a first grinding tooth, and the periphery of the second grinder is provided with a second grinding tooth which is positioned below the first grinding tooth and is in clearance fit with the first grinding tooth.

In some embodiments, a boss is disposed on the top of the second grinder, a third grinding tooth is disposed on the periphery of the boss, the third grinding tooth is located in the first grinder, and the density of the third grinding tooth is less than that of the second grinding tooth.

In some embodiments, the adjustment mechanism comprises an elastic member and a manual rotation member; the elastic piece is sleeved outside the rotating shaft and located at the top of the boss, two ends of the elastic piece are respectively connected with the rotating shaft and the boss in an abutting mode, and the manual rotating piece is rotatably connected to the rotating shaft and abutted to the bottom of the second grinder.

In some embodiments, the manual rotating piece is provided with an adjusting groove, the inner wall of the adjusting groove is provided with a first thread, the bottom end of the rotating shaft is provided with an adjusting pin, the outer circumference of the adjusting pin is provided with a second thread, the first thread is matched with the second thread, and the adjusting pin is wholly or partially arranged in the adjusting groove.

In some embodiments, the second grinder is provided with a limiting through groove, the second grinder is sleeved outside the rotating shaft through the limiting through groove, the rotating shaft is provided with a first limiting portion, and the first limiting portion is matched with the limiting through groove to limit circumferential movement of the second grinder relative to the rotating shaft.

In some embodiments, the rotating shaft is further provided with a second limiting portion, the second limiting portion is located above the first limiting portion, the radial width of the second limiting portion is greater than the radial width of the first limiting portion, and the length of the second limiting portion in the axial direction of the rotating shaft is less than the length of the elastic member.

In some embodiments, a chassis is further provided, a first magnetic member is arranged at the top end of the chassis, a second magnetic member is arranged at the bottom end of the machine body, and the first magnetic member and the second magnetic member are matched.

In some embodiments, the first magnetic member and the second magnetic member are both magnetic sleeves, and the second magnetic member is sleeved outside the first magnetic member.

In some embodiments, a handle is connected to the top end of the rotating shaft, and a handle is arranged at one end of the handle away from the rotating shaft, and is rotatably connected with the handle.

The utility model has the advantages that the manual coffee grinder comprises a machine body, a rotating shaft, a first grinder and a second grinder, wherein the rotating shaft, the first grinder and the second grinder are arranged in the machine body; first mill is fixed in the organism, the second mill cover is established outside the pivot and is rotated with the pivot is synchronous, the second mill is located the below of first mill and with second mill clearance fit, be provided with adjustment mechanism in the pivot, through the adjustable second mill of this adjustment mechanism in the axle center direction of pivot with the relative position of pivot, thereby adjust the clearance distance of first mill and second mill, clearance distance between the two is less, the ground coffee powder granule is more thin, thereby can realize adjusting the thickness degree of grinding and getting the coffee powder as required.

In addition, the second grinder can axially move on the rotating shaft, and the second grinder can be conveniently detached for cleaning or replacement, and the like, so that the manual coffee grinder is more convenient to use.

Drawings

FIG. 1 is a cross-sectional view of a manual coffee grinder provided by the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an exploded schematic view of a manual coffee grinder provided by the present invention;

FIG. 4 is a schematic structural view of a manual coffee grinder provided by the present invention;

FIG. 5 is a bottom view of a second grinder of the manual coffee grinder provided by the present invention;

fig. 6 is a sectional view of a rotary shaft of a manual coffee grinder provided by the present invention.

Description of the reference numerals:

10. a body; 11. a second magnetic member; 20. a rotating shaft; 21. an adjustment pin; 22. a first limiting part; 23. a second limiting part; 30. a first grinder; 31. first grinding; 40. a second grinder; 41. a second grinding tooth; 42. a limiting through groove; 43. a first avoidance slot; 44. a card slot; 50. a boss; 51. a third grinding tooth; 60. an elastic member; 70. manually rotating the workpiece; 71. an adjustment groove; 80. a chassis; 81. a first magnetic member; 91. a handle; 92. a handle; 93. a first cover plate; 94. and a second cover plate.

Detailed Description

In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.

As used herein, unless otherwise specified or defined, "first" and "second" … are used merely for name differentiation and do not denote any particular quantity or order.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.

It should be noted that "fixed to" or "connected to" in this document may be directly fixed to or connected to one element or may be indirectly fixed to or connected to one element.

As shown in fig. 1 to 6, the embodiment of the present invention discloses a manual coffee grinder, which comprises a machine body 10, a rotating shaft 20 disposed in the machine body 10, a first grinder 30 and a second grinder 40; the first grinder 30 is fixed in the inner cavity of the machine body 10, the second grinder 40 is sleeved outside the rotating shaft 20 and rotates synchronously with the rotating shaft 20, the second grinder 40 is located below the first grinder 30 and is in clearance fit with the second grinder 40, the rotating shaft 20 is provided with an adjusting mechanism, the relative position of the second grinder 40 and the rotating shaft 20 in the axial direction of the rotating shaft 20 can be adjusted through the adjusting mechanism, and namely the second grinder 40 can axially move on the rotating shaft 20. Therefore, the gap distance between the first grinder 30 and the second grinder 40 can be adjusted, the smaller the gap distance between the first grinder 30 and the second grinder 40 is, the finer the ground coffee powder particles are, the larger the gap distance between the first grinder and the second grinder is, the coarser the ground coffee powder particles are, and the thickness degree of ground coffee powder can be adjusted according to needs. In addition, the second grinder 40 can axially move on the rotating shaft 20, and the second grinder 40 can be conveniently detached for cleaning or replacement, and the like, so that the manual coffee grinder is more convenient to use.

In the present embodiment, the first grinder 30 is hollow, and the inner wall of the first grinder 30 is provided with a first grinding tooth 31, and the periphery of the second grinder 40 is provided with a second grinding tooth 41, and the second grinding tooth 41 is located below the first grinding tooth 31 and is in clearance fit with the first grinding tooth 31.

In this embodiment, a boss 50 is disposed at the top of the second grinder 30, a third grinding tooth 51 is disposed on the periphery of the boss 50, the third grinding tooth 51 is located in the first grinder 30, and the density of the third grinding tooth 51 is less than that of the second grinding tooth 41. Through being provided with the structure that the density increases the two-stage grinding tooth step by step, can be so that this manual coffee grinds machine's grinding effect is better.

The first grinding tooth 31 and the second grinding tooth 41 are respectively in an inner conical shape, and the third grinding tooth 51 is in an arc spiral groove shape, is formed by cutting a tooth shape, and is low in cost and simple to process.

Wherein, the material of first grinder 30 and second grinder 40 is ceramic material, can solve the rust problem and can reach the powder requirement again, and the condition that generates heat can not appear at the in-process of grinding moreover influences the taste of coffee powder, more does benefit to and grinds the coffee powder good in the taste.

In the present embodiment, the adjustment mechanism includes an elastic member 60 and a manual rotation member 70; the elastic member 60 is sleeved outside the rotating shaft 20 and located at the top of the boss 50, a clamping block is arranged on the rotating shaft 20, the elastic member 60 is clamped below the clamping block, so that the top end of the elastic member 60 abuts against the rotating shaft 20, the bottom end of the elastic member 60 abuts against the top of the boss 50, and the manual rotating member 70 is rotatably connected to the rotating shaft 20 and abuts against the bottom of the second grinder 40.

The elastic member 60 is an elastic member like a spring, and the manual rotating member 70 is a rotating member like a nut or a knob, which is inconvenient because the nut needs to be rotated by a tool. In this embodiment, the manual rotating member 70 is preferably provided as a knob. Based on this, by manually rotating the knob forward and backward, the amount of extension and retraction of the elastic member 60 can be adjusted, and thus the axial movement of the second grinder 40 can be adjusted, so as to adjust the gap distance between the first grinder 30 and the second grinder 40.

When the position of the second grinder 40 is adjusted toward the top end of the rotating shaft 20, the smaller the gap distance between the second grinder and the first grinder 30; when the position of the second grinder 40 is adjusted toward the bottom end of the rotating shaft 20, the clearance distance between the second grinder and the first grinder 30 is larger. In this embodiment, the manual rotating member 70 is preferably a linear knob, which is more convenient and labor-saving to rotate.

In this embodiment, the manual rotating member 70 is provided with an adjusting groove 71, the inner wall of the adjusting groove 71 is provided with a first thread, the bottom end of the rotating shaft 20 is provided with an adjusting pin 21, the outer circumference of the adjusting pin 21 is provided with a second thread, the first thread is matched with the second thread, the adjusting pin 21 can be fixed in the adjusting groove 71 through the first thread and the second thread, and the adjusting pin 21 can be completely or partially arranged in the adjusting groove 71.

It will be understood that the adjustment pin 21 can be placed in the adjustment groove 71 in a depth range equivalent to the adjustment range for the thickness of the coffee powder, indicating that the axial position of the second grinder 40 is adjusted to the highest level when the adjustment pin 21 is fully placed in the adjustment groove 71.

In this embodiment, the second grinder 40 is provided with a limiting through groove 42 penetrating vertically, the second grinder 40 is sleeved outside the rotating shaft 20 through the limiting through groove 42, the rotating shaft 20 is provided with a first limiting portion 22, the first limiting portion 22 is matched with the limiting through groove 42 to limit circumferential movement of the second grinder 40 relative to the rotating shaft 20, so that the second grinder 40 only axially moves relative to the rotating shaft 20. The limiting through groove 42 and the first limiting portion 22 are preferably square columns, and as shown in fig. 5, the limiting through groove 42 is square when viewed from the bottom of the second grinder 40.

The second grinder 40 is further provided with a first avoiding groove 43, the first avoiding groove 43 is communicated with the limiting through groove 42, and viewed from the upward viewing direction of the second grinder 40, the first avoiding groove 43 surrounds the limiting through groove 42, the two sides of the first avoiding groove 43 are respectively connected with a clamping groove 44, the first avoiding groove 43 is matched with the clamping groove 44 and used for accommodating a knife edge key, the knife edge key is sleeved outside the rotating shaft 20 and clamped in the first avoiding groove 43 and the clamping groove 44, and therefore circumferential fixation of the second grinder 40 and the rotating shaft 20 can be further achieved.

In this embodiment, the rotating shaft 20 is further provided with a second limiting portion 23, the second limiting portion 23 is located above the first limiting portion 22, a radial width of the second limiting portion 23 is greater than a radial width of the first limiting portion 22, and a length of the second limiting portion 23 in the axial direction of the rotating shaft 20 is smaller than a length of the elastic member 60.

The second limiting portion 23 is used for stabilizing the elastic element 60, when the elastic element 60 is sleeved outside the rotating shaft 20, most of the elastic element 60 is located at the second limiting portion 23, and the other part of the elastic element 60 is located at the first limiting portion 22, and the elastic element 60 can be stabilized through the second limiting portion 23 with a larger radial width, and meanwhile, a moving space is reserved for axial movement of the second grinder 40. Among them, the second stopper portion 23 is preferably provided in a cylindrical shape, and the radial width of the second stopper portion 23 is equivalent to the radial width of the elastic member 60, so that the elastic member 60 can be more stably.

The manual coffee grinder is further provided with a chassis 80 for containing ground coffee powder, the ground coffee powder falls into the chassis 80 through a gap between the first grinder 30 and the second grinder 40, the chassis 80 is detached, and the ground coffee powder can be taken out for coffee making.

The top end of the chassis 80 is provided with a first magnetic member 81, the bottom end of the machine body 10 is provided with a second magnetic member 11, the first magnetic member 81 is matched with the second magnetic member 11, and the chassis 80 and the machine body 10 are magnetically attracted by the first magnetic member 81 and the second magnetic member 11.

The cooperation of body is connected from top to bottom through setting up the magnetism spare in the junction of organism 10 and chassis 80, compares the traditional mode that uses screw-thread fit to connect, can break away from on the screw thread a lot of coffee powder and remain the problem that leads to the washing difficulty to reduce the coffee powder loss, and convenient dismantlement more, easily wash.

In other possible embodiments, the first magnetic member 81 and the second magnetic member 11 may be respectively composed of a plurality of corresponding magnetic sheets. And in this embodiment, first magnetism spare 81 and second magnetism spare 11 all set up to the magnetism external member, and second magnetism spare 11 covers is established outside first magnetism spare 81 to can further strengthen the fixed connection of organism 10 and chassis 80 when reducing coffee powder loss, convenient dismantlement.

Wherein, the top of pivot 20 is connected with handle 91, and in the use of grinding coffee beans, need hand shaking handle 91 in the horizontal direction, drive pivot 20 and the rotation of second grinder 40, grind coffee beans. If a fixed handle is provided on the handle 91, a relatively large frictional force is generated.

Therefore, in this embodiment, the rotatable handle 92 is disposed at one end of the handle 91 far away from the rotating shaft 20, that is, the handle 92 is rotatably connected to the handle 91, so that the handle 92 can rotate relative to the handle 91, friction can be effectively reduced, and the grinding process is more labor-saving and easier.

Wherein, the handle 92 is rotationally connected with the handle 91 through a rivet, and the shape of the handle 92 is a round body which is suitable for being grasped by the palm and tends to be inverted cone. Further, the handle 91 can be designed to be a telescopic structure, so that too much space is occupied due to the overlong handle, the overall size of the coffee maker is reduced, and the coffee maker is convenient to carry.

As shown in fig. 4, in this embodiment, a first cover plate 93 and a second cover plate 94 are further disposed on the top of the machine body 10, the second cover plate 94 is provided with a second avoiding groove, the second avoiding groove is matched with the first cover plate 93, when the first cover plate 93 is embedded into the second avoiding groove, the first cover plate 93 and the second cover plate 94 are embedded in the horizontal direction to form a sealing cover, the sealing cover is located below the handle 91, the first cover plate 93 is fixedly connected to the rotating shaft 20, one side of the second cover plate 94 close to the first cover plate 93 is rotatably connected to the top hinge of the machine body 10, one side of the second cover plate 94 far away from the first cover plate 93 is an open end, when the handle 91 is located above the first cover plate 93, in the process of turning up the open end, the second avoiding groove can avoid the handle 91, and thus opening the cover is achieved.

Therefore when the coffee beans are ground, a series of accessories such as handles and cover plates do not need to be taken down, the handles 91 are only required to be rotated to the upper side of the first cover plate 93, the opening end of the second cover plate 94 can be directly opened, the coffee beans are added into the inner cavity of the machine body 10, so that the cover opening without disassembly can be realized, the sealing cover which needs to be disassembled in the market is abandoned, and the coffee beans are more convenient to add into the coffee beans by a user on the premise that the grinding process of the coffee beans is not carried out due to centrifugal force.

The above embodiments are not intended to be exhaustive list of the present invention, and there may be many other embodiments not listed. Any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.

Claims

1. The manual coffee grinder is characterized by comprising a machine body, a rotating shaft, a first grinder and a second grinder, wherein the rotating shaft, the first grinder and the second grinder are arranged in the machine body; the first grinder is fixed in the machine body, the second grinder is sleeved outside the rotating shaft and synchronously rotates with the rotating shaft, the second grinder is positioned below the first grinder and in clearance fit with the second grinder, the rotating shaft is provided with an adjusting mechanism, and the second grinder can be adjusted by the adjusting mechanism in the axial direction of the rotating shaft and at the relative position of the rotating shaft.

2. A manual coffee grinder as claimed in claim 1, characterized in that the first grinder is hollow and its inner wall is provided with a first grinding tooth, and the periphery of the second grinder is provided with a second grinding tooth, which is located below the first grinding tooth and is in clearance fit with the latter.

3. A manual coffee grinder as claimed in claim 2, characterized in that the top of the second grinder is provided with a boss, the periphery of which is provided with a third grinding tooth, which is located inside the first grinder, the density of the third grinding tooth being lower than the density of the second grinding tooth.

4. A manual coffee grinder as claimed in claim 3, characterised in that said adjustment means comprise an elastic member and a manual rotation member; the elastic piece is sleeved outside the rotating shaft and located at the top of the boss, two ends of the elastic piece are respectively abutted to the rotating shaft and the boss, and the manual rotating piece is rotatably connected to the rotating shaft and abutted to the bottom of the second grinder.

5. Manual coffee grinder as claimed in claim 4, characterized in that the manual rotary member is provided with an adjustment groove, the inner wall of which is provided with a first thread, the bottom end of the rotary shaft is provided with an adjustment pin, the outer circumference of which is provided with a second thread, the first thread matching the second thread, and the adjustment pin being wholly or partly placed in the adjustment groove.

6. A manual coffee grinder as claimed in claim 4, wherein the second grinder is provided with a limiting through groove, the second grinder is sleeved outside the rotating shaft through the limiting through groove, the rotating shaft is provided with a first limiting portion, and the first limiting portion is matched with the limiting through groove to limit circumferential movement of the second grinder relative to the rotating shaft.

7. The manual coffee grinder of claim 6, wherein the rotating shaft further comprises a second limiting portion, the second limiting portion is located above the first limiting portion, a radial width of the second limiting portion is greater than a radial width of the first limiting portion, and a length of the second limiting portion in the axial direction of the rotating shaft is smaller than a length of the elastic member.

8. A manual coffee grinder as claimed in any one of claims 1 to 7, characterised by a base plate, the top end of which is provided with a first magnetic member, the bottom end of the body is provided with a second magnetic member, the first and second magnetic members being matched.

9. The manual coffee grinder of claim 8, wherein the first magnetic member and the second magnetic member are each a magnetic sleeve, the second magnetic member being sleeved outside the first magnetic member.

10. Manual coffee grinder as claimed in any one of the claims 1 to 7, characterized in that a handle is connected to the top end of the shaft, and a handle is provided at the end of the handle remote from the shaft, which handle is rotatably connected to the handle.